diff --git a/models/user_business_analysis.go b/models/user_business_analysis.go
index dd72fac4a..0cbcfba8f 100644
--- a/models/user_business_analysis.go
+++ b/models/user_business_analysis.go
@@ -2566,3 +2566,9 @@ func GetContentFromPromote(url string) (string, error) {
 	allLineStr := string(bytes)
 	return allLineStr, nil
 }
+
+func QueryLast30DaysHighestIndexUsers(size int) ([]int64, error) {
+	userIds := make([]int64, 0)
+	err := xStatistic.Table("user_business_analysis_last30_day").Cols("id").OrderBy("user_index desc").Limit(size).Find(&userIds)
+	return userIds, err
+}